<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
  </head>
  <body>
    <script>
      "use strick";

      let a = 100;
      // let this = window
      console.log(this);
      const info = {
        age: 20,
        name: "jack",
        // say: function()  {
        //   // let this = info;
        //   console.log(this);
        // },
        say: () => {
          let a = 200;
          console.log(this);
          console.log(a);
        },
      };

      info.say();
    </script>
  </body>
</html>
